How does poolex handle worker crashes?

[aidalgol]

I was reading through the documentation, and it's not clear to me how Poolex handles crashed workers (unhandled exception in the worker process). I'm still fairly new to Elixir, and I have a feeling this would be obvious if I was more familiar with supervisor trees.

[general-CbIC]

Hi, @aidalgol!

When I launch the worker process, I use the Process.monitor functions to know if it fails.

Here is the function that uses Monitoring.add, and here uses Process.monitor.
The {:DOWN message will come to the main Poolex's process when something goes wrong.

You can read about Process.monitor function here.